Piping deposit removal from stator water cooling systems
AssigneeGeneral Electric Company
InventorRaymond Grant Rowe
Life of this patent
Estimating the term…
Abstract
The present invention provides a method of removing copper oxide deposits from stator water cooling system piping material surfaces. The present invention disconnects the generator from the stator water cooling system, connects bridging piping to the stator water cooling system at the points from which the generator was disconnected to allow the stator water cooling system to operate without the generator, provides a sufficient amount of an aqueous solution of an agent which dissolves or removes copper oxide deposits from piping material surfaces for a time sufficient to dissolve or remove substantially all copper oxide deposits, and rinses the piping material surfaces with sufficient water until the output water from the rinsing of the piping material surfaces is essentially neutral.
Claims12
A method of removing copper oxide deposits from piping surfaces of stator water cooling systems connected to an electrical generator while maintaining the protective stable copper oxide layer on the stator strands of the generator, said method comprising:
- a) disconnecting the generator from the stator water cooling system,
- b) connecting bridging piping to the stator water cooling system at the points from which the generator was disconnected so the stator water cooling system operates without the generator,
- c) introducing into the stator water cooling system a sufficient amount of an agent which dissolves or removes copper oxide deposits from said piping surfaces, for a time sufficient to dissolve or remove substantially all copper oxide deposits, and
- d) rinsing said piping surfaces with sufficient water until the output water exiting the stator water cooling system is essentially neutral.
Dependencies are inferred from the claim text.